Are the diagnostic tools really free?

Yes. Every check on this site — MX, SPF, DKIM, DMARC, TLS, and blacklists — is free with no account required, and stays that way.

How does Subscribe work?

During early access there is no automated checkout. Subscribe sends us a short request for the plan you want; we reply personally and set up your account. Payment is arranged individually.

Is there a contract or refund policy?

Paid plans are arranged individually while we are in early access, so terms are agreed directly with you. There is no long-term contract and no automated billing yet.

Simple pricing for email-authentication monitoring

The diagnostic tools are free with no account. Continuous monitoring — scheduled checks, change history, and alerts — starts at $29/mo. Paid plans are arranged individually during early access; there is no automated checkout.

	Free $0	Starter $29/mo	Recommended Pro $59/mo	Business $129/mo	Agency Custom
Domains	1	5	15	30	Custom
Check frequency	Daily	Every 6 hrs	Hourly	Every 15 min	Custom
History	90 days	Unlimited	Unlimited	Unlimited	Unlimited
Alerts	Weekly	Instant	Instant	Instant	Instant
Channels	Email	Email	EmailSlack	EmailSlackwebhook	EmailSlackwebhook
	Start free	Request the Starter plan Starter · $29/mo. Plans are arranged individually — there's no automated checkout. Send this and we'll reply personally to set you up. EmailAnything we should know? (optional) We'll email you about your request. See our Privacy Policy.	Request the Pro plan Pro · $59/mo. Plans are arranged individually — there's no automated checkout. Send this and we'll reply personally to set you up. EmailAnything we should know? (optional) We'll email you about your request. See our Privacy Policy.	Request the Business plan Business · $129/mo. Plans are arranged individually — there's no automated checkout. Send this and we'll reply personally to set you up. EmailAnything we should know? (optional) We'll email you about your request. See our Privacy Policy.	Request the Agency plan Agency · Custom. Plans are arranged individually — there's no automated checkout. Send this and we'll reply personally to set you up. EmailAnything we should know? (optional) We'll email you about your request. See our Privacy Policy.

Pricing FAQ

Are the diagnostic tools really free?: Yes. Every check on this site — MX, SPF, DKIM, DMARC, TLS, and blacklists — is free with no account required, and stays that way.
How does Subscribe work?: During early access there is no automated checkout. Subscribe sends us a short request for the plan you want; we reply personally and set up your account. Payment is arranged individually.
Is there a contract or refund policy?: Paid plans are arranged individually while we are in early access, so terms are agreed directly with you. There is no long-term contract and no automated billing yet.